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Average Weather in July in Mountain Ranch California, United States

The highest daily average high temperature is 89°F on July 20.

Daily low temperatures increase by 2°F, from 61°F to 63°F, rarely falling below 53°F or exceeding 71°F. The highest daily average low temperature is 63°F on July 30.

For reference, on July 19, the hottest day of the year, temperatures in Mountain Ranch typically range from 63°F to 89°F, while on December 23, the coldest day of the year, they range from 37°F to 51°F.

Average High and Low Temperature in July

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in July

Average Hourly Temperature in July in Mountain Ranch18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMJunAugcoolcomfortablecomfortablecomfortablewarmhotcoolcold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Bienvenida, Spain (5,711 miles away) and Tudela, Spain (5,699 miles) are the far-away foreign places with temperatures most similar to Mountain Ranch (view comparison).

Clouds

The month of July in Mountain Ranch experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 11% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 9% on July 29.

The clearest day of the month is July 29, with clear, mostly clear, or partly cloudy conditions 91% of the time.

For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%.

Cloud Cover Categories in July

Cloud Cover Categories in July in Mountain Ranch1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAugFeb 2143%Feb 2143%Jul 187%Jul 187%Jul 3190%Jul 3190%Jul 1188%Jul 1188%Jul 2190%Jul 2190%clearovercastmostly clearmostly cloudypartly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Mountain Ranch, the chance of a wet day over the course of July is essentially constant, remaining around 1% throughout.

For reference, the year's highest daily chance of a wet day is 33% on February 21, and its lowest chance is 1% on August 1.

Probability of Precipitation in July

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during July in Mountain Ranch is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches.

Average Monthly Rainfall in July

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

Over the course of July in Mountain Ranch, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 38 minutes, implying an average daily decrease of 1 minute, 17 seconds, and weekly decrease of 8 minutes, 56 seconds.

The shortest day of the month is July 31, with 14 hours, 8 minutes of daylight and the longest day is July 1, with 14 hours, 47 minutes of daylight.

Hours of Daylight and Twilight in July

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month in Mountain Ranch is 5:42 AM on July 1 and the latest sunrise is 21 minutes later at 6:04 AM on July 31.

The latest sunset is 8:29 PM on July 1 and the earliest sunset is 17 minutes earlier at 8:12 PM on July 31.

Daylight saving time is observed in Mountain Ranch during 2017, but it neither starts nor ends during July, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 5:39 AM and sets 14 hours, 50 minutes later, at 8:28 PM, while on December 21, the shortest day of the year, it rises at 7:15 AM and sets 9 hours, 30 minutes later, at 4:45 PM.

Sunrise & Sunset with Twilight in July

The solar day over the course of July. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Mountain Ranch is essentially constant during July, remaining around 0% throughout.

For reference, on September 10, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in July

The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Mountain Ranch is essentially constant during July, remaining within 0.1 miles per hour of 5.4 miles per hour throughout.

For reference, on February 4, the windiest day of the year, the daily average wind speed is 6.0 miles per hour, while on September 3, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.

Average Wind Speed in July

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction in Mountain Ranch throughout July is predominantly from the west, with a peak proportion of 52% on July 14.

Wind Direction in July

Wind Direction in July in Mountain Ranch1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAugwestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Mountain Ranch typically lasts for 8.5 months (261 days), from around March 15 to around December 1, rarely starting before January 29 or after April 16, and rarely ending before November 9 or after December 31.

The month of July in Mountain Ranch is reliably fully within the growing season.

Time Spent in Various Temperature Bands and the Growing Season in July

Time Spent in Various Temperature Bands and the Growing Season in July in Mountain Ranchgrowing seasongrowing seasongrowing season1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAug100%Jul 16100%Jul 16Jul 28100%Jul 28100%coldcoolcomfortablewarmhot
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Mountain Ranch are rapidly increasing during July, increasing by 730°F, from 1,336°F to 2,066°F, over the course of the month.

Growing Degree Days in July

The average growing degree days accumulated over the course of July, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Mountain Ranch is essentially constant during July, remaining within 0.2 kWh of 8.3 kWh throughout.

The highest average daily incident shortwave solar energy during July is 8.6 kWh on July 1.

Average Daily Incident Shortwave Solar Energy in July

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Mountain Ranch are 38.228 deg latitude, -120.541 deg longitude, and 2,238 ft elevation.

The topography within 2 miles of Mountain Ranch contains very significant variations in elevation, with a maximum elevation change of 1,047 feet and an average elevation above sea level of 2,284 feet. Within 10 miles contains very significant variations in elevation (4,029 feet). Within 50 miles also contains extreme variations in elevation (11,519 feet).

The area within 2 miles of Mountain Ranch is covered by shrubs (42%), trees (35%), and grassland (22%), within 10 miles by shrubs (47%) and trees (35%), and within 50 miles by trees (29%) and grassland (25%).

Data Sources

This report illustrates the typical weather in Mountain Ranch year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 6 weather stations near enough to contribute to our estimation of the temperature and dew point in Mountain Ranch.

For each station, the records are corrected for the elevation difference between that station and Mountain Ranch according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Mountain Ranch is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Mountain Ranch and a given station.

The stations contributing to this reconstruction are: Placerville Airport (36%, 57 kilometers, north); Stockton Metropolitan Airport (16%, 71 kilometers, southwest); Sacramento Mather Airport (16%, 76 kilometers, northwest); Modesto City-County Airport (16%, 76 kilometers, southwest); Lake Tahoe Airport (8%, 88 kilometers, northeast); and Bridgeport Sonora Junction (8%, 90 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.